Axle torque preventing device



June 29, 1937. J. MERCIER AXLE TORQUE PREVENTING DEVICE Original FiledJune 22, 1933 Jean MQYCLBr 1N VENTDE, j; ZOM AL v fiin-AT'T yi and theside-beam 2.

. and at their other Patented J une 29, 1937 AXLE TORQUE PREVENTINGDEVICE Jean Mercier, Neuiily sur Seine, France Original application June22, 1933, Serial No.

677,071. Divided'and this application December 26, 1934, July 5, 1932Serial No. 759,203. In France 6 Claims. (01. 267-67) The presentinvention, which is a division of my copending application Serial No.677,071 filed June 22, 1933,. has for its object a device for preventingthe rotation or the torsion of a stationary member, such as an axle'ora'false hub of a motor vehicle, under the action of a power couple or abraking couple exerted upon the said fstationary member. For thispurpose, according to the invention, two links of unequal lengths arepivoted to the said stationary member, at one of their ends, at twopoints which are at a distance from each other, said points beingsituated substantially in a plane which is parallel with the couplewhich is to be resisted, ends, to a second member which is secured tothe vehicle. Said arrangement is useful in order to oppose the raisingor lowering of the front or the rear -of the vehicle frame either underthe action of a power couple or under the action of a braking couple.

Further characteristics and advantages of the invention will be set.i'orth in the following description.

The accompanying drawing represents diagrammatically, by way of example,a form of execution of the invention as applied to a motor vehicle.

In this example, I. is the axle of the vehicle, 2 a side-beam oi thechassis, and 3 the usual suspension spring, mounted between the axle l Arigid member of any kind, 4, which in the example represented is thecylinder of a shock-absorber, is secured to .the side-beam 2, "forinstance by rods 5. The

member is also connected, by two links 6 and l, of unequal lengths whichmay be parallel or not, to two forked brackets 6-9 mounted on the axleI. The attaching connections -abcde consist of pivots, and mayand-socket joints, cylindrical axles, or other devices of-an equivalentnature.

In the cylinder 4 containing a gaseous or liquid fluid is slidable apiston ll whose rod II is pivoted at l2 to a crank-arm l3 mounted on thepivot axle c. The shock-absorber device. in itself, does not constitutethe object of the invention; it may be of any type, for instance of atype disclosed in my copending application 677,071. The piston I6 ispierced with a hole through which is slid ble 9. lantern-member 15provided with longitudinal apertures l6 and II.-

S id lantern member I6 is provided at its-ends th two discs l6 and I9pierced with apertures 20 and 2|. A ball 22 arranged in the member I, isadapted to close either of the apertures 26 and have the form of 'ball-A spring 23 bears on the disc l8 and on the cylinder 4 and a spring 24bears on the disc l6 .and onthe piston l0.- When under the eflect of animpact, the axle I rises or descends with 1 reference to the side-beam2, the rod 1 will turn on the pivot c, thus turning the crank-arm l3, insuch way as to lower or to raise the piston in. When the piston I0 risesit bears against the disc l8 and drives with itself said disc l8 and themember I5 and the fluid passes freely from the chamber 25 into-thechamber 26 through the apertures 20, I6, l1, and the spring 23 iscompressed. When the piston returns to its initial position, the fluidmay flow from the chamber 26 into the chamber 26 only by raising thelantern member l5 against the action of the compressed spring 23,whereby rebounding is prevented. An analogous operation occurs when thepiston I 0 is lowered under the effect of a shock.

If the stress of the the braking acts upon the axle, with a tendency totwist the axle in the direction of the arrow f, the link .1,whichxoperates by compression, will tend to repel the member 4 to theright of the figure, but on the contrary, the link 6 which operates bytraction will oppose this movement, and -will' tend to maintain the axleI in its original state. The if the power stress or tend to twist theaxle the braking'stress should in the contrary direction to the arrow 1;in this case the link 6 will operate by compression, and the link I, bytraction. Owing. to this arrangement, one will also avoid bringing thetorsion couple upon .the suspension spring 3. Itwill be'noted thatthedistance between the pivots b and c may be as great or as small as maybe desired. .These two pivots may even be combinedin a single one.Moreover, the links 6 and 1 being unequal, the couple imparted\by themember I to the member 7 bring upon the member 4 an additional componentforce which tends to raise or lower the chassis 2' with reference to theaxle.

The invention is evidently not limited to the form of executiondescribed, which has been chosen only by way of example; it is alsoapplicable to the case of independent wheels.

Having now described my invention what'I claim as new and desire tosecure by Letters Patent is: a I v 1. A device comprising incombination, a first member of the non-suspended part of a motorsuspended part or said- .vehicle,-and two links of power or the stressof eflfect will be the same,-

lwill' unequal lengths pivoted at one end to said first member at twopoints which are spaced apart and are situated substantially in a planeparallel to the plane of the couple to be resisted, andat their otherends to said second member.

2. A device comprising in combination, a first member or thenon-suspended part of a motor vehicle adapted tobe twisted or rotated bya torsion couple, a second member pivoted to the suspended part of saidvehicle and two links of unequal lengths and not parallel pivoted at oneend to said first member at two points which are spaced apart and aresituated substantially in a plane parallel to the plane oi the couple tobe resisted and at their other ends to said second member.

3. A device comprising in combination 'an axle of a motor vehicleadapted to be twisted or rotated by a torsion couple, a member pivotedto the suspended part of said vehicle, and two links of unequal lengthspivoted at one end to said axle at two points which are spaced apart andare situated substantially in a plane parallel to the plane of thecouple to be resisted, and at their other ends to said member.

4. A device comprising in combination an axle of a motor vehicle adaptedto be twisted or rotated by a torsion couple, a member pivoted to thesuspended part of said vehicle, and two links 30 of unequal lengths andnot parallel pivoted at one end to said axle at two points which arespaced apart and are situated substantiallyin a plane parallel to theplane of the couple to be resisted, and at their other ends to saidmember.

5. A device comprising in combination an axle of a motor vehicle adaptedto be twisted or rotated by a torsion couple, a member-oi the suspendedpart of the vehicle, a cylinder connected to said member and containinga fluid, a pivoting stud rotatably supported on said cylinder, a pistonadapted to be reciprocated in said cylinder and connected to said stud,and two links ot'unequal lengths pivotally connected at one endrespectively with said stud and with said memher and at their other endswith said axle.

6. In combination with a vehicle, a suspended member and a wheel axle, apair of links of unequal length pivoted at one end to spaced points ofsaid axle and located substantially in a plane parallel to the plane ofa wheel adapted to be mounted on said axle, and means for snubbing thevertical movement of the wheel, said means being pivotally connectedwith the opposite ends oi said links of unequal length, and with thesuspended part of said vehicle for allowing movements of the wheel withrespect to the suspended part other than movements in a verticaldirection.

JEAN MERCIER.

